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1.The flannel-heads considered the twin towers prime targets and attacked them previously.
2. The forward speed combined with the mass of the aircraft would produce enough energy through the heat of compression at the points of impact to slice through the towers perimeter load bearing members like butter.
3. Add the heat from the jet fuel to a structure with diminished load capacity and a severely damaged fire suppression system and it's probably a testament to the engineering that they stood as long as they did after being struck.
4. And fuck a buncha truthers.

What do you call an arrogant bully that can never admit it when he's wrong? Mr. President.

He forgot that there were approximately 150 feet of basement, sublevels, shopping mall, maintenance areas, parking garages, and loading docks all below ground level beneath the towers......even a subway and PATH train station.........

The towers themselves were composed mostly of empty air (sans furnishings and accoutrements), all built around a small central core of steel girders and cantilevered beams.......the outside structure was simply a thin stainless steel skin........

And yes.....I worked in Tower One for a number of years, and am quite familiar with the construction.

A Truther, surprise surprise.
Give it to us Reb, relieve yourself of a load of truth, I'm sure it's building up to uncomfortable levels.

Your favorite exercise seems to be jumping to conclusions.

No, I'm not a 'truther'. I'm an engineer. The link I posted was to a book written by a woman who has a PhD in mechanical engineering. Like I said, the author is a neighbor of one of my co-workers and loaned my co-worker the book and we all read it. And, like I said, if you're technically inclined, you would find the book quite interesting. After all, this was a thread started about theories, wasn't it?

"The beauty of the Second Amendment is that you won't need it until they try to take it away."---Thomas Jefferson

He forgot that there were approximately 150 feet of basement, sublevels, shopping mall, maintenance areas, parking garages, and loading docks all below ground level beneath the towers......even a subway and PATH train station.........

The towers themselves were composed mostly of empty air (sans furnishings and accoutrements), all built around a small central core of steel girders and cantilevered beams.......the outside structure was simply a thin stainless steel skin........

And yes.....I worked in Tower One for a number of years, and am quite familiar with the construction.

doc

Well, the 'he' is actually a 'she'............

Also, your 'mostly empty air' was surrounded by and filled with hundreds of thousands of tons of structural steel, concrete, aluminum cladding, wallboard, plumbing fixtures, air conditioning, miles of electrical and telecommunication wiring, furnishings and the 15,000 people employed in each building for an average of 136 people per floor and if we assume an average weight of 150 pounds per person that would be an additional ~20,000 pounds per floor.

I think the premise of Dr. Woods book was that there wasn't enough debris to match the total calculated mass of the building and it's contents, therefore, where did the towers go?

Last edited by Unreconstructed Reb; 10-22-2013 at 05:23 AM.

"The beauty of the Second Amendment is that you won't need it until they try to take it away."---Thomas Jefferson